US3558551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nucleation of 1-olefin polymers with phthalocyanine pigments
Assignee: Phillips Petroleum Co
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Filing: 1968-03-18
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Granted: 1971-01-26
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Expires: 1988-03-18
Abstract
Abstract THE CRYSTAL STRUCTURE OF U-OLEFIN POLYMERS IS ALTERED BY THE ADDITION OF BETWEEN 0.0005 AN 0.005 WEIGHT PERCENT OF A PHTHALOCYANINE PIGMENT.
Inventors
- 👤 Dixie E Gilbert
- 👤 Tommy G Poff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:50
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |